Profile Section

240x90x1.2mm S235JR Uncoated Steel Sigma Plus Profile

The 240x90x1.2mm steel Sigma Plus profile is a cold roll-formed Σ+ section to EN 10162 with a deep stiffened 240 mm web, 90 mm flanges, fixed 25+15 mm double lips and 1.2 mm sheet thickness, weighing a nominal 4.98 kg/m. Produced to order in uncoated S235JR steel, the Sigma+ indent and double lips raise buckling resistance for heavy purlins, columns and long-span structures. This variant is uncoated cold-rolled structural strip in grade S235JR (EN 10025), minimum yield about 235 MPa. The surface is bare — specify shop painting or hot-dip galvanizing in the quote when the profile will be used outdoors.

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Made to Order — Roll Formed

This profile is roll-formed to order in your exact length (1–15 m; longer on project basis). Minimum production run is approx. 3000 kg per size and grade. Add your sizes to a quote request and our team confirms lead time and pricing within one business day.

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Quantity (pieces)

Minimum order: 51 pieces

Minimum total length: 606 m

Weight per meter:4.977 kg/m

Total length:12 meters

Total weight:59.724 kg

Production options

Optional made-to-order requirements — added to this line for our production team.

Pre-painted finish (RAL)Punching / holes to drawingMill certificate EN 10204 3.1

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Applications & Usage

Sigma+ 240x90x1.2 is the weight-optimized choice for heavy purlins, columns and long-span rafters where a standard Sigma or C is not enough. The deep web indent and double lips allow thinner material for the same performance, cutting steel cost and foundation loads on industrial and agricultural buildings. S235JR is the general structural grade for indoor frames, painted purlins, and profiles that will be hot-dip galvanized after roll forming. At a nominal 4.98 kg/m and cut-to-length production from 1 to 15 m, material usage is optimized with no offcuts on site. Minimum production run is approximately 3000 kg per size and grade — add your sizes to a quote request and our team confirms exact tonnage, lead time and delivered pricing.

Technical Specifications

Specification	Value
Dimensions	240mm × 90mm × 1.2mm
Weight per Meter	4.977 kg/m
Material	Steel
Alloy/Grade	S235JR
Standard	EN 10162 / EN 10346
Profile Type	Sigma Plus (Σ+)
Edge Lip (c)	25+15 mm
Developed Width	≈ 528 mm
Cross-Section Area	≈ 6.34 cm²
Moment of Inertia Iₓ	≈ 555.6 cm⁴
Moment of Inertia Iᵧ	≈ 70.0 cm⁴
Section Modulus Wₑₗ,ₓ	≈ 46.07 cm³
Section Modulus Wₑₗ,ᵧ	≈ 12.06 cm³
Minimum Production Run	3 t
Finish	S235JR Uncoated
Available Lengths	6m, 12m
Standard Length	6 m
Minimum Order Length	606 m
Cut-to-Length Range	1000 – 15000 mm

Indicative elastic section properties computed from the nominal centerline (thin-walled, corner radii ignored). For preliminary sizing only — not a substitute for a stamped structural calculation.

Indicative load span (single span, simply supported)

Allowable uniformly-distributed load (kN/m) limited by elastic bending about the strong axis (γ = 1.5 on yield, S235JR). Deflection is not checked and usually governs long spans. Indicative only — confirm with a project calculation.